Record module type statistics

Creates a build_system_stats.txt build artifact that contains statistics
on how many BUILD_* modules are defined in a build. Also writes out
information about the Soong module types sent from the Soong build.

Merged-In: Iaf0c7062f542dc6942b5349854f3d49267cac4a5
Change-Id: Iaf0c7062f542dc6942b5349854f3d49267cac4a5
diff --git a/core/java_library.mk b/core/java_library.mk
index 283e9ad..b132fa6 100644
--- a/core/java_library.mk
+++ b/core/java_library.mk
@@ -2,6 +2,7 @@
 ## Standard rules for building a java library.
 ##
 ###########################################################
+$(call record-module-type,JAVA_LIBRARY)
 
 ifdef LOCAL_IS_HOST_MODULE
 $(error $(LOCAL_PATH): Host java libraries must use BUILD_HOST_JAVA_LIBRARY)